NodeScanModule.cs

        public WoWGameObject ClosestNode()
        {
            List<WoWGameObject> herbNodes = ObjectManager.GameObjects
                .Where(x => x.GatherInfo.Type == Enums.GatherType.Herbalism).ToList();
            List<WoWGameObject> mineNodes = ObjectManager.GameObjects
                .Where(x => x.GatherInfo.Type == Enums.GatherType.Mining).ToList();

            List<string> herbCheckedBoxes = CMD.herbCheckedBoxes;
            List<string> mineCheckedBoxes = CMD.mineCheckedBoxes;

            if ((!herbNodes.Any() && !mineNodes.Any()) 
                || (herbCheckedBoxes?.Any() == false && mineCheckedBoxes?.Any() == false))
                return null;

            herbNodes = herbNodes.Where(x => /*x.GatherInfo.RequiredSkill <= HerbLevel() 
                &&*/ herbCheckedBoxes.Any(y => y == x.Name)).ToList();
            mineNodes = mineNodes.Where(x => /*x.GatherInfo.RequiredSkill <= MineLevel() 
                &&*/ mineCheckedBoxes.Any(y => y == x.Name)).ToList();

            List<WoWGameObject> nodes = herbNodes.Concat(mineNodes).ToList();

            return nodes.OrderBy(x => ObjectManager.Player.Position.GetDistanceTo(x.Position)).FirstOrDefault();
        }